EP0433588A1 - Verschleissgeschütztes Gehäuse für eine Schneckenstrangpresse für die Verarbeitung von thermoplastischem Kunststoff, Kautschuk, Nahrungsmitteln oder dergleichen - Google Patents

Verschleissgeschütztes Gehäuse für eine Schneckenstrangpresse für die Verarbeitung von thermoplastischem Kunststoff, Kautschuk, Nahrungsmitteln oder dergleichen Download PDF

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Publication number
EP0433588A1
EP0433588A1 EP90119323A EP90119323A EP0433588A1 EP 0433588 A1 EP0433588 A1 EP 0433588A1 EP 90119323 A EP90119323 A EP 90119323A EP 90119323 A EP90119323 A EP 90119323A EP 0433588 A1 EP0433588 A1 EP 0433588A1
Authority
EP
European Patent Office
Prior art keywords
wear
sleeves
screw
sections
housing according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90119323A
Other languages
German (de)
English (en)
French (fr)
Inventor
Manfred Dipl.-Ing. Dienst
Arnold Dipl.-Ing. Aschemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Publication of EP0433588A1 publication Critical patent/EP0433588A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/682—Barrels or cylinders for twin screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the invention relates to wear-resistant housings according to the preamble of patent claim 1.
  • a wear-protected screw housing for a screw extruder is known.
  • the wall of the housing bore has recesses evenly distributed over its circumference and delimited by remaining intermediate webs, into which part-shaped wear inserts are introduced.
  • the arrangement of sleeves in the end regions of the housing sections on both sides limits the corrosion and wear primarily to the sleeves because the sleeves protrude slightly beyond the wear inserts in the middle housing areas.
  • the corrosion in the cylinders is basically the same at all points. However, since there is a frictional effect on the above sleeves due to the abrasive material located between the web back and the cylinder inner wall, the wear is concentrated on the sleeves.
  • the sleeve is advantageously produced from a highly corrosion-resistant metal with highly abrasion-resistant properties.
  • the abrasion properties should be higher than the abrasion properties of the material of the middle bore linings. This design limits wear almost exclusively to the support sleeves.
  • the protruding distance of the sleeves from the lining of the middle housing sections depends on the abrasion properties of the material to be processed, i.e. the fillers incorporated in a plastic, e.g. Fiberglass particles.
  • the protruding length of the sleeves should be chosen longer.
  • the two end regions of the individual cylinder sections which assume the support function with the support sleeves used, can also be designed as entire cylinder sections.
  • a cylinder section is lined with a protruding, i.e., over the entire length of the inner cylinder section.
  • Reduced diameter sleeve arranged alternately with a cylinder section without a sleeve.
  • the cylinder section without a support sleeve has a slightly larger diameter. The corrosion and wear are primarily noticeable in the cylinder sections with inserted sleeves.
  • the reference number 7 identifies the protruding distance of the sleeve 4 from the cylinder bore in the central region.
  • the reference symbol d denotes the diameter in the area of the sleeves and D in the area without support sleeves.
  • a screw 8 shown schematically in FIG. 1 can be guided on the sleeves 4 and 5.
  • the screw rotates at a certain speed, self-centering takes place so that the screw webs 9 do not touch the sleeves 4 and 5.
  • the corrosion and wear is greater in the area of the sleeves (the delivery pressure is lower due to the smaller distance from the screw bridge 9 to sleeves 4 and 5) than the wear in the central area without sleeves (larger distance from the bridge back to the inner wall of the cylinder). If wear has occurred on the support sleeves that goes beyond a permissible level, an exchange process takes place.
  • a sleeve 15 is shown in a housing section of a twin-screw extruder housing section 13. In this case, the sleeve 15 is additionally inserted in a wear protection insert 12.
  • a wear insert is arranged between the sleeves 4 and 15.
  • a sleeve is used in a housing of a twin-screw extruder, which was welded together in the middle from the parts 15a and 15b.
  • FIG. 5 shows individual cylinder sections 17, 18, 19, 20 and 21, sleeves 23, 24 and 25 being inserted into sections 17, 19 and 21. This embodiment ensures that the corrosion and wear remains essentially limited to the sleeves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP90119323A 1989-12-21 1990-10-09 Verschleissgeschütztes Gehäuse für eine Schneckenstrangpresse für die Verarbeitung von thermoplastischem Kunststoff, Kautschuk, Nahrungsmitteln oder dergleichen Withdrawn EP0433588A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942350 1989-12-21
DE3942350A DE3942350C1 (en, 2012) 1989-12-21 1989-12-21

Publications (1)

Publication Number Publication Date
EP0433588A1 true EP0433588A1 (de) 1991-06-26

Family

ID=6396062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119323A Withdrawn EP0433588A1 (de) 1989-12-21 1990-10-09 Verschleissgeschütztes Gehäuse für eine Schneckenstrangpresse für die Verarbeitung von thermoplastischem Kunststoff, Kautschuk, Nahrungsmitteln oder dergleichen

Country Status (5)

Country Link
US (1) US5110284A (en, 2012)
EP (1) EP0433588A1 (en, 2012)
JP (1) JPH03190716A (en, 2012)
DE (1) DE3942350C1 (en, 2012)
RU (1) RU1829999C (en, 2012)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3474326B2 (ja) * 1995-08-23 2003-12-08 東芝機械株式会社 ２軸混練押出機用バレル
DE19600220A1 (de) * 1996-01-05 1997-07-10 Henkel Kgaa Extruder zum Herstellen von Wasch- und/oder Reinigungsmitteln sowie Verfahren zum Umrüsten eines solchen
US5816699A (en) * 1997-06-13 1998-10-06 Entek Manufacturing Inc. Twin screw extruder barrel with an easily removable seamless insert having a wear and corrosion resistant lining
EP0974271B1 (fr) * 1998-07-23 2003-11-12 Societe Des Produits Nestle S.A. Moyens de guidage des arbes d'un extrudeur
US6195866B1 (en) * 1998-11-24 2001-03-06 Nan Ya Plastics Corporation Method for making an extruder sleeve
US6250791B1 (en) * 2000-06-16 2001-06-26 Loren T. Schneider Liner and pin assembly for use with an apparatus for kneading or mixing materials
DE10048870C2 (de) * 2000-10-02 2003-01-09 Xaloy Ag Olten Gehäuse für Kunststoff-, Metallpulver-, Keramikpulver- oder Lebensmittelverarbeitungsmaschinen und Verfahren zur Herstellung eines derartigen Gehäuses
US20060022362A1 (en) * 2004-07-27 2006-02-02 Fish Robert B Jr Apparatus for monitoring corrosion of extruder components during operation, and processes incorporating such apparatus
DE102013110671B4 (de) * 2013-09-26 2018-05-24 Kraussmaffei Berstorff Gmbh Verschleißkörper zur Aufnahme einer Doppelschnecke zur Extrusion von schmelzfähigem Material
US9573313B2 (en) 2014-08-06 2017-02-21 Entek Manufacturing Llc Extruder screw shaft alignment apparatus and method
CN115923087A (zh) * 2022-10-21 2023-04-07 苏州艾盾合金材料有限公司 一种防腐蚀双螺杆挤出机筒体
DE102023133845A1 (de) * 2023-12-04 2025-06-05 Extruder Experts Gmbh & Co. Kg Gehäusesegment und Verfahren zum Herstellen desselben

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2423785B1 (de) * 1974-05-16 1975-09-11 Werner & Pfleiderer, 7000 Stuttgart Verschleißeinsatz für das Schneckengehäuse einer Doppelschneckenstrangpresse oder -spritzgießmaschine
WO1986002313A1 (en) * 1984-10-12 1986-04-24 Michael Reinhard Process for producing a wear-resistant working area, preferably for injection-moulding machines and for single and double-shaft extrusion machines, including the tapered type, and a wear-resistant working area produced according to this process

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149066A (en) * 1936-12-09 1939-02-28 Nixon Nitration Works Method for obtaining luster, color, pattern, and complicated shape effects
LU38223A1 (en, 2012) * 1959-04-10 1900-01-01
US3496603A (en) * 1967-08-17 1970-02-24 Johnson & Johnson Single screw extruder
US3804382A (en) * 1971-07-01 1974-04-16 Cincinnati Milacron Inc Extruder construction
FR2272822B1 (en, 2012) * 1974-06-01 1978-08-18 Werner & Pfleiderer
DE2558611C3 (de) * 1975-12-24 1982-09-23 Werner & Pfleiderer, 7000 Stuttgart Verfahren zum verschleißfesten Auskleiden des Arbeitsraumes von Schneckenextrudern
US4133460A (en) * 1976-01-29 1979-01-09 Jerpbak Jeffery P Apparatus embodying explosively removable sleeve
US4385876A (en) * 1978-05-31 1983-05-31 Baker Perkins Inc. Split wear liner for twin bore barrel assembly
DE3023393A1 (de) * 1980-06-23 1982-01-07 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Temperierbares gehaeuse fuer einen doppelschneckenextruder
US4462692A (en) * 1982-11-27 1984-07-31 Frenkel C-D Aktiengesellschaft Screw extruders
US4519713A (en) * 1983-03-21 1985-05-28 The Quaker Oats Company Apparatus and method for relining extruder barrels
GB2150037B (en) * 1983-11-26 1986-11-12 Farrel Bridge Ltd Extruder barrel construction
DE3347537A1 (de) * 1983-12-30 1985-09-05 Josef A. 7144 Asperg Blach Gehaeuseabschnitt fuer eine doppelschneckenwellenmaschine
US4746220A (en) * 1985-04-18 1988-05-24 Noritake Co., Limited Screw type extruding or kneading machine and screw used therein

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2423785B1 (de) * 1974-05-16 1975-09-11 Werner & Pfleiderer, 7000 Stuttgart Verschleißeinsatz für das Schneckengehäuse einer Doppelschneckenstrangpresse oder -spritzgießmaschine
WO1986002313A1 (en) * 1984-10-12 1986-04-24 Michael Reinhard Process for producing a wear-resistant working area, preferably for injection-moulding machines and for single and double-shaft extrusion machines, including the tapered type, and a wear-resistant working area produced according to this process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUNSTSTOFFE, Band 71, Nr. 5, Mai 1981, Seiten 266-271, Carl Hanser Verlag, München, DE; K. MAUCH: "Aufbereiten von technischen Kunststoffen" *

Also Published As

Publication number Publication date
US5110284A (en) 1992-05-05
DE3942350C1 (en, 2012) 1990-10-04
JPH03190716A (ja) 1991-08-20
RU1829999C (ru) 1993-07-23

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